Home / 143,032.56-197,368.92-79,373.04

Finding the Fourth Proportional to 143,032.56, 197,368.92 and 79,373.04

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Solution

The fourth proportional to 143,032.56, 197,368.92 and 79,373.04 is: 109,525.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,032.56 : 197,368.92 = 79,373.04 : x
  2. Step 2: Convert to fraction form
    143,032.56/197,368.92 = 79,373.04/x
  3. Step 3: Cross multiply
    143,032.56x = 197,368.92 × 79,373.04
  4. Step 4: Simplify right side
    143,032.56x = 15,665,771,181.92
  5. Step 5: Solve for x
    x = 15,665,771,181.92/143,032.56
  6. Step 6: Final answer
    x = 109,525.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.